East Sussex · England
Sand mastic for sash & case windows in Cripp's Corner, East Sussex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Cripp's Corner, with a 12-month guarantee on every job. Ask us for a quote.
- Cracked mastic round a front door frame
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Sand mastic in Cripp's Corner, done properly
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We work on stone surrounds, tenement windows and sash and case windows, and people most often call us about old sand mastic that has cracked, crumbled or fallen out and weathered mastic on the most exposed windows.
Homes in small places like Cripp's Corner often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.
- Where
- Cripp's Corner (TN32)
- Region
- East Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Do not run silicone over sand mastic
- Check with your local planning authority if your home is listed
- Keep sills and gutters clear so water drains away
- Ask a joiner to look at soft timber first
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Cripp's Corner homes and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Durhamford Manor (about 1.5 miles south) are a reminder that the area around Cripp's Corner has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near St Marks Staplecross, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Staplecross Methodist Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Robertsbridge station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Cripp's Corner is about 7 miles north of Hastings, in East Sussex. For sand mastic in and around Cripp's Corner, please call 0345 464 0079 or drop us an email for a quick quote. We cover East Sussex from our Crawley base. We cover 289 towns and villages across East Sussex. We also work in Brighton, around 30 miles away.
All of TN32 is covered for sand mastic, from the main roads to the quietest streets. We also cover the places around Cripp's Corner: Swaile's Green (1 mile south), Staplecross (1 mile north-east), Whatlington (2 miles south-west), Sedlescombe (2 miles south) and Snagshall (2 miles north). Within a short drive, we also cover Hastings (7 miles south), Bexhill-on-Sea (8 miles south), Hailsham (14 miles south-west), St Leonards (7 miles south), Hastings Old Town (8 miles south) and Belmont (8 miles south).
Around Cripp's Corner
In Cripp's Corner, that means homes and buildings near The White Hart pub. The nearest railway station is Robertsbridge station, about 3 miles north-west. Well-known places in the area include Conquest Hospital (5.6 miles south) and Nortons Farm Museum (3.2 miles south). Green spaces nearby include Senlac Hill.
Cripp's Corner questions
Do you cover Cripp's Corner for sand mastic?
Yes, Cripp's Corner is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear quote.
Is Cripp's Corner within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we will talk you through it.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
How the visit works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Cripp's Corner, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
Get a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
Places near Cripp's Corner
What else we do in Cripp's Corner
What affects the quote in Cripp's Corner
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- The product the joint needs
What you pay reflects the work, not guesswork. That is why we ask a few questions first and agree the price before starting.
What we need to know
To help us quote quickly, please include:
- Photos by email, if that’s easy
- If someone has resealed it before
- Where the property is
- The rough size of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Cracked or broken glass
- Sashes that need overhauling
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Brick reveals
- Timber door frames
Why act early in Cripp's Corner
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. Older cottages and farmhouses around Cripp's Corner can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What you get with us
- A 12-month guarantee on all work
- ARBOMaster approved applicator
- Over 20 years’ experience
- Full insurance on every job
See what affects the cost and our reviews.